Robert M. Bowman Jr. (M.A., Fuller Theological Seminary; Ph.D., South African Theological Seminary) is the director of research for the Institute for Religious Research (www.irr.org). His books include Jehovah's Witnesses, The Word-Faith Controversy, Putting Jesus in His Place: The Case for the Deity of Christ (with J. Ed Komoszewski) and Faith Has Its Reasons (with Kenneth D. Boa). He has updated and expanded this booklet from his chapter in A Guide to New Religious Movements, edited by Ronald Enroth.